5 papers
The metallicities of little red dot host galaxies: LRDs are metal poor, but not pristine
G. P. Nikopoulos, D. Watson, C. L. Pollock +4
Little Red Dots (LRDs) are a population of high-z sources discovered by JWST whose compactness, broad permitted lines, strong absorption features, continuum shapes and luminosities…
Exploring the interplay between star formation efficiency and dust in regulating the UV luminosity of early systems in the JWST and ALMA era
Georgios Panagiotis Nikopoulos, Pratika Dayal
James Webb Telescope (JWST) observations have unveiled numerous galaxy candidates between , hinting at an over-abundance of sources at the bright-end of the UV lum…
Little red dots as young supermassive black holes in dense ionized cocoons
V. Rusakov, D. Watson, G. P. Nikopoulos +14
The James Webb Space Telescope (JWST) has uncovered many compact galaxies at high redshift with broad hydrogen and helium lines, including the enigmatic population of little red do…
Inefficient dust production in a massive, metal-rich galaxy at uncovered by JWST and ALMA
Kasper E. Heintz, Darach Watson, Francesco Valentino +17
Recent observations have revealed a remarkably rapid buildup of cosmic dust in the interstellar medium (ISM) of high redshift galaxies, with complex dust compositions and large abu…
Evidence of violation of Case B recombination in Little Red Dots
G. P. Nikopoulos, D. Watson, A. Sneppen +4
Little Red Dots (LRDs) are a new class of compact extragalactic objects, with a v-shaped optical spectral energy distribution breaking close to the Balmer break wavelength, and bro…